公开(公告)号：US20240143513A1

公开(公告)日：2024-05-02

申请号：US17958337

申请日：2022-10-01

Applicant: Intel Corporation

Inventor： Gilbert NEIGER ,  Andreas KLEEN ,  David SHEFFIELD ,  Jason BRANDT ,  Ittai ANATI ,  Vedvyas SHANBHOGUE ,  Ido OUZIEL ,  Michael S. BAIR ,  Barry E. HUNTLEY ,  Joseph NUZMAN ,  Toby OPFERMAN ,  Michael A. ROTHMAN

IPC: G06F12/1009 ,  G06F12/0811 ,  G06F12/1027

CPC classification number: G06F12/1009 ,  G06F12/0811 ,  G06F12/1027

Abstract: An apparatus and method for switching between different types of paging using separate control registers and without disabling paging. For example, one embodiment of a processor comprises: a first control register to store a first base address of a first paging structure associated with a first type of paging having a first number of paging structure levels; a second control register to store a second base address of a second paging structure associated with a first type of paging having a second number of paging structure levels greater than the first number of paging structure levels; page walk circuitry to select either the first base address from the first control register or the second base address from the second control register responsive to a first address translation request, the selection based on a characteristic of program code initiating the address translation request.